Malicious PDF — malware analysis report

Static analysis result for SHA-256 425cb16e8ae93c76…

MALICIOUS

PDF

174.2 KB Created: 2025-07-18 06:50:21 +03:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-15
MD5: 4e6a2c6086068b53a7f1508529aba045 SHA-1: 0490d254f20899b1ca6b4a9a8b113b171f6bd44c SHA-256: 425cb16e8ae93c7607d388477843fac682d83a733c17b5815d6bf40d1047fd90
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0016

Heuristics 5

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://beadsandlooms.com/ckfinder/userfiles/files/2580c587-1ca9-44b0-a1a3-ed1ff09c2e75.pdf In PDF document text
    • https://houstoncoinclub.org/FCKeditor/file/51988886649.pdfIn PDF document text
    • http://elitsatodorova.com/uploadfiles/file/66468157586.pdfIn PDF document text
    • https://beaconindustrialservices.com/userfiles/file/68988463088.pdfIn PDF document text
    • https://raghuvirtrading.com/userfiles/file/637b1927-ef1d-437a-9917-ef84e8e1f73c.pdfIn PDF document text
    • http://www.harn2.com/admin/ckfinder/userfiles/files/toxexitavu.pdfIn PDF document text
    • http://bloodfaces.de/attachment/file/73966043249.pdfIn PDF document text
    • https://walekute.tugoduzak.com/711251207228185224421404500473590158738842?xeludedopikagigosefifojifurujetubataxisowimajovumulenugesomiwibupugesebuwirebuz=pesasojafejunipozamobedawovarigusebigenenitirudidekegeremekasowizewikuvonujexirogowanakokunujokogibopuvixegibexatapapoxisaxonilefuwufagesujuzofasozakugowazedesisezexematudijizenogejofixapadufobonofose&utm_term=shall+make+meaning&fezenonetabexevosinubawapepobogavawogetewujufimakowujubejumoxukifofarun=lazuwajopagonuxelodavukuxatedemekebixebawulenoremamijufobadupidirejiselerexesulikabazimezupuzikibutawupinolipafejapi)/Type/ActionIn PDF document text
    • https://beadsandlooms.com/ckfinder/userfiles/files/2580c587-1ca9-44b0-a1a3-ed1ff09c2e75.pdf)/Type/ActionIn PDF document text
    • https://houstoncoinclub.org/FCKeditor/file/51988886649.pdf)/Type/ActionIn PDF document text
    • http://elitsatodorova.com/uploadfiles/file/66468157586.pdf)/Type/ActionIn PDF document text
    • https://beaconindustrialservices.com/userfiles/file/68988463088.pdf)/Type/ActionIn PDF document text
    • https://raghuvirtrading.com/userfiles/file/637b1927-ef1d-437a-9917-ef84e8e1f73c.pdf)/Type/ActionIn PDF document text
    • http://www.harn2.com/admin/ckfinder/userfiles/files/toxexitavu.pdf)/Type/ActionIn PDF document text
    • http://bloodfaces.de/attachment/file/73966043249.pdf)/Type/ActionIn PDF document text
    • https://walekute.tugoduzak.com/711251207228185224421404500473590158738842?xeludedopikagigosefifojifurujetubataxisowimajovumulenugesomiwibupugesebuwirebuz=pesasojafejunipozamobedawovarigusebigenenitirudidekegeremekasowizewikuvonujexirogowanakokunujokogibopuvixegibexatapapoxisaxonilefuwufagesujuzofasoPDF link annotation
    • https://walekute.tugoduzak.com/711251207228185224421404500473590158738842?xeludedopikagigosefifojifurujetubataxisowimajovumulenugesomiwibupugesebuwirebuz=pesasojafejunipozamobedawovarigusebigenenitirudidekegeremekasowizewikuvonujexirogowanakokunujokogibopuvixegibexatapapoxisaxonilefuwufagesujuzofasozakugowazedesisezexematudijizenogejofixapadufobonofose&utm_term=shall+make+meaning&fezenonetabexevosinubawapepobogavawogetewujufimakowujubejumoxukifofarun=lazuwajopagonuxelodavukuxatedemekebixebawulenPDF link annotation
    • https://walekute.tugoduzak.com/711251207228185224421404500473590158738842?xeludedopikagigosefifojifurujetubataxisowimajovumulenugesomiwibupugesebuwirebuz=pesasojafejunipozamobedawovarigusebigenenitirudidekegeremekasowizewikuvonujexirogowanakokunujokogibopuvixegibexatapapoxisaxonilefuwufagesujuzofasozakugowazedesisezexematudijizenogejofixapadufobonofose&utm_term=shall+make+meaning&fezenonetabexevosinubawapepobogavawogetewujufimakowujubejumoxukifofarun=lazuwajopagonuxelodavukuxatedemekebixebawulenoremamijufobadupidirejiselerexesulikabazimezupuzikibutawupinolipafejapiIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/iX/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_013_off0001ce03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1CE03 1049600 bytes
SHA-256: a47c8d80023153dde6bcdab322b746bc81c0e192bd1ed7c70a4480f1275261aa
font_00_sfnt_off00028834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28834 3376 bytes
SHA-256: c23f5984d7143d1e5fa3df11fde7a8b56fd1bcab1da75a26383c90c62df9a787
font_01_sfnt_off0002934f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2934F 6708 bytes
SHA-256: c4d7e284b4de1988d264ef091453c8d1819bfd21203d98a8e9245daf727a0d3e

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